People · Hong Kong, China
Cheng Chi Tong (鄭此同)
3×3 · top 2.9% of 284,439 all-time · competing since May 2023 · 2023TONG03
Cheng Chi Tong (鄭此同) has been competing for 3 years. His best event is the 3×3: a personal-best single of 8.05, set at Chongqing Open 2023, puts him in the top 2.9% of the 284,439 people who have ever been ranked in the event, and 85th in Hong Kong, China. Until July 2008, no official 3×3 solve in the world had been that fast. Across 4 competitions since May 2023, he has put 83 official solves on the record across six events. Solve to solve, his 3×3 times vary about 14% around a typical one, an early reading from 8 counted rounds. His 3×3 best has come down from 10.80 in May 2023 to 8.05, a 25% improvement. Cheng has entered four competitions, more competitions than 78% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Hong Kong, China | |
|---|---|---|---|---|---|
| 3×3 | 8.05 | 9.68 | top 2.9% | 85 / 1,347 | |
| 2×2 | 2.42 | 4.15 | top 8.1% | 109 / 855 | |
| Pyraminx | 6.33 | 8.37 | top 22.5% | 143 / 431 | |
| 3×3 one-handed | 21.87 | 25.48 | top 25.6% | 150 / 361 | |
| 4×4 | 59.59 | — | top 36.0% | 219 / 423 | |
| Skewb | 8.21 | 11.00 | top 42.9% | 160 / 285 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 18 Nov 2023First sub-10 3×3: 9.39 at Chongqing Open 2023.
- 18 Nov 2023Three personal bests in one day at Chongqing Open 2023.
- 26 May 2023First competition: Hong Kong Small Cube Day 2023. A 10.80 3×3 single to start from.
Competitions
- Hangzhou Spring 2024 · 2 Mar 2024 — 2 personal bests set
- Shenzhen Open 2023 · 24 Dec 2023 — 1 personal best set
- Chongqing Open 2023 · 18 Nov 2023 — 3 personal bests set
- Hong Kong Small Cube Day 2023 · 26 May 2023
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Chenhao Ma (马晨皓) — met in 16 rounds, finished ahead once
- Yiming Zhuang (庄轶茗) — met in 15 rounds, finished ahead once
- Yue Shen (申粤) — met in 12 rounds, finished ahead twice
Next targets
- A sub-8 3×3 single — 7,931 people have one; it is 0.05 away.
- A sub-2 2×2 single — 8,848 people have one; it is 0.42 away.
Targets move as he improves.